High-pressure isothermal equation of state of composite materials: A case study of LX-17 polymer bonded explosive
Document Type
Article
Publication Date
7-2019
Department
Department of Physics
Abstract
Experimental determination of the isothermal high-pressure equation of state (EOS) of composites is not feasible by using conventional diffraction techniques. To overcome this issue in the case of polymer bonded explosives (PBXs), composites made of an energetic material and a polymeric binder, we have expanded the applicability of the optical microscopy and interferometry technique previously developed in our group. To accommodate representative samples of a PBX with large grains, we modified the diamond culets of a diamond anvil cell to include etched micrometer-scale pits. This enabled us to measure the isothermal EOS of a PBX, namely, LX-17, up to 8 GPa. The results are compared with the EOSs of the constituent materials and previously published shock measurements. The technique employed in this study is not limited to PBXs and could be potentially used for the EOS determination of other materials ranging from composites to alloys and granular materials.
Publication Title
Applied Physics Letters
Recommended Citation
Leversee, R. A.,
Zaug, J. M.,
Sain, J. D.,
Weir, S. T.,
Bastea, S.,
Fried, L. E.,
&
Stavrou, E.
(2019).
High-pressure isothermal equation of state of composite materials: A case study of LX-17 polymer bonded explosive.
Applied Physics Letters,
115(5).
http://doi.org/10.1063/1.5108677
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/795
Publisher's Statement
© 2019. Published under license by AIP Publishing. Publisher’s version of record: https://doi.org/10.1063/1.5108677